5th Birthday Superhero design. Justice League 5th Birthday Super Heroes I'm 5 is 100% authentic, officially licensed Justice League merchandise! (JLA10072E) Justice League is DC Comics' most iconic superhero team featuring Batman, Superman, Wonder Woman, The Flash, Aquaman. Created in 1960, The Justice League continues to be one of the best selling series of all time Lightweight, Classic fit, Double-needle sleeve and bottom hem